Grooved bearing



May 26,1931. J.L; MYERS 1,807,166

GROOVED BEARING Original Fi led May 9, 1923 s Sheets-Sheet s INVLNTOR.

A ATTORNEY 3a bearing; Fig. 5is a Patented May 26, 193i rArENr w s I c j J L MYEBS OF (:{LEVEILBJND HEIGHTS, OHIO,

ASSIGNOR no me oLnvnnarm enarm'rn aaonzn commmr, or cnnvnmnn, 0310, A conronarron or onro I enoovnn BEARINQ original application filed Kay 9, 1928, Serial No. 637,818. Divided and this application filed October 27,

' 1924.. Serial No. (45,984.

The present invention relates to an improved bearing formed of rolled, hardened sheet metal and provided with. a lubricant groove formed'in the operating surface of the 5 bearing. The principal object of the present invention is the provision of a bearing of the split rolled sheet metal type provided with a lubricant-receiving oove of various types in the operating sur ce, the groove being formed in the bearing during its process of manufacture, and in this way avolding any operations subsequent to the forming ofthe sheet metal into cylindrical shape, and thus avoiding machining the surface of the bearing. To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawings and the following description set forth in detail certain mechanismembodying the invention, such disclosed means constituting, however, but one of various mechanical forms in which the principle of the invention may be used- 26 In said annexed drawings t-- I i Fig. 1 shows 'a view in longitudinal section of apparatus for rolling a certain type of groove in. a strip of metal designed to be formed in a bearing; Fig.2 is a similar view at showing the blanking means for severing the strip into sheets of the proper size for cir-f Fig. 3 is a plan view of cling'in bearings;

formation of the grooves;

the strip after the Fig i strip in which has been formed a groove slightly difier'ent from that shown in Fig. 3; Fig. 6 is a view of the strip after the blanking operation; Fig. 7 is a plan view of the 4 blank cut from the strip; Fig. 8 isa longi tudinal section through a combined grooving and blanking punch and the complementary dies and-also the first 'formingpunches or f dies; Fig. 9 is a section on the line 9-9 in "Fig. 7; Fig. 10 is a section on the line 101 -10 of Fig; 8 through the blanking dies Fig. 11 T is .a's'ection on the line1111 Fig. 8 'showing the firstfformin ,dies} Fig. 12 is a transverse section of the b a'nk' after-the completion of- 150 the fir t forming operation; and Figs.'13 tq is a view in pers ctive of thejfinished p an view showing the.

and with a'proj'ection 17 extending from "'serveto convey oil or other lubricant from end to end of the finished bearing and to distribute the same over the shaft or pin which is journaled therein.

.Afterthe strip. 1 is passed through the grooving rolls 3 it is passed into a blank punch consistin .of a reciprocating die 7 and stationary ies-S, and blanks are in this way out from the strip, the sha e and size of the blank being indicated in Fig. 3 by the dotted lines 9. Certain typesv of grooves, such, for example, as those shown in Figs. 3 and 13, in which the groove extends from edge to edge of the original strip, may readily be formed by rolls, as indicated in Fig.1, while other types of grooves shown in Figs. 14 to 18, 'clusive, can more conveniently and economically be produced by means of reciprocating dies, which are shown in Figs. 8 to 11, inelusive.

In Fig. 5-there is shown a diagonally extending ubricant groove 10' in a strip-11, the groove terminating short of the sides or edges 12 of the strip 11, and having a lubricant'car rying aperture 13 formed at some point, and passing entirely through she strip. Such an oil groove may be for me by means of the reciprocating dies shown i Figs. 8, 10 and 11 In Fig. 8 there is shown a stationary die; 14 and a reciprocating die 15, the-latter being provided with a cylindrical projection 16 adapted to formthe'oil hole 13 inthe;strip,

either side of the projection 16 and adapted to'form the oil groove. Thisgroove-forming die is combined with a blanldng die 18, which .is shown in transverse section in Fig. 10, and

19, shown inFig. 7, from which; cuts the blank is fed forward into a slot 23 in the member 24,

which carries the dies 20, the plunger 22 is I brought down and bends or folds the blank into the shape shownin Fig. 12 against the complementary oscillating members 20, after whichthe partially formed bearing is discharged from this die and is then finished and formed into true cylindrical shape by any suitable means. I

In Figs. 14 to 18, inclusive, I have shown various types of lubricating grooves,'tha t of Fig. 14 consisting of two-parallel grooves and 26, connected by transverse grooves 27 with a supply opening through the bearing at the intersection of one of. the transverse grooves and one of the two parallel-grooves.

'In Fig. 15 a series of transverse grooves 29 are shown intersecting a longitudinal groove groove 30,

30, and it should be remembered that the shown as the longitudinal groove in the'blank, becomes an encircling or circumferential groove in the finished bearing. In Fig. 16 I have shown two crossed ooves31 and 32, which, in the finished bear- 1ng, will form a figure 8, while in Fig. 17 there groove 33 and lubricant supply hole 34:,the groove extending to the edges of the finished bearing on one side only. In Fig. '18 there is shown a circumferential groove andsupply 4c is a single opening 36, but the groove 35 does not extend completely around the interior-of the finished bearing.

The advantages of the present bearings are their low cost of manufacture andthe very much better distribution of lubricant. which can be secured by reason of the shapes and forms of grooves which can be produced by the present method over those which are possible by machine or finished bushings, which is the method now in general use in producing lubricant grooves. The lubricant grooves produced by the present method add but very little to the cost of the'bearing, and ,can be given practically any desired shape .to insure proper distribution of the 'lubricant under various conditions. 4 4

Other 'modes'of applying the'principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the following claims or the'equivalent of such stated means be employed.

I therefore particularly point out and dis- 'tinctly claim as my invention 1. A splitcylindrical sheet metal'bearmg -tuting but a very small fraction age of having a cold pressed liquid lubricant distributmg groove formed -1n the bearing surface thereof, the area of saidgroove constiarea of said bearing, and said groove being spaced at allpoints a material distance from the ends of said bearing.

2.- A split cylindrical sheet metal bearing having a'cold pressed liquid lubricant distributmg groove formed 1n the bearing surface'thereof, said groove bein arranged to register across the split in sai bearing and of the total said groove being spaced :1 suflicient distance from the ends of said bearing to prevent leaklubricant from said bearing and an opening through said bearing for the entrance of lubrlcant.

Signed by me, this 24th day of October.

\ JAMES L. MYERS. 

